Seat-back support and adjuster



June 3, 1930. V M. A. CAMPBELL 1,762,127

SEAT BACK SUPPORT AND ADJUSTER Filed Jan. 3, 1928 Patented June '3, 1930 1 2: aw/them M MALCOLM ALEXANDER current, onrcaco, nitiators, nss cnon ,on jonn-jr rirnn f T BERNARD rrena'sr nn oimg'r'rarRnT-ro FRANK ivr. ir'r, Born on;

f ILLINOIS Application filed January 3,

The present invention relates to an improved seat back support and adjustenand the purpose thereof isfto proved a device-of this kind which will enable the back of a seat, particularly that of an automobile, to

v be. adjusted inv order to regulate its: position and more comfortably accommodate the body of the chaulfeurvor driver and hence avoid rendering the handling of the steerit is the purpose of the present invention to avoid the use ofthis securing means and to mount theseat back so that it can be ado-o justed.

port and adjuster mountedon the ledge, including a slide which may abut the upper portion of the seat back, there being means to hold the slide in different adjusted positions, especially'to hold the upper portion of the seat back forwardly, inorder to more comfortably accommodate the position of the drivers back with relation to the steereing wheel, and, hence avoiding being tireit some when manipulating the automobile steering wheel. 7

Still another purpose is to provide a supporter and adjuster of this kind, which may have aloose or abutting connection with the seat back, in order to accommodate the 7 different positions of the seat back;

i construction of the appliance according to H in" place when the'screw is tlghtened 1n..order Figure 1--is a view It is to be understood that the particulars herein given are in no way limitive, and that while still keeping within the scope of the invention, any desired modification of de tails and proportions may be made in the circumstances. r

The invention comprises further'features and combination of parts to be hereinafter set forth, shown in the drawings v and claimed. i

In the drawings:

bile to fix this seat back to the ledge, hence In order to, carry out this scheme, a *fur-. therpurpose is to provide acombined sup-x;

entering the automobile. 1

showing the applica asg'app'liedto the back of the coupe seat. Figure 2 is a Figure '3' -Iis" on -line 33 of Figure-2.

.t "Figure {4; 1S" a -v 1ew;more clearly 'showa ing the abutting connection between thesl'ide and the seatback, wherein a modified. construction is employed: f f

' Referring to the draw ngs 1 identifies the base'of tlie seat back support and adjuster,

theseatbackB: This base has a longitud .i-

, I V longitudinal sectional view through the same j a transverse sect onal view tion of theimproved supporter and adjuster which may fastened'at 2 'by any suitable means to the ledge or shelf at the rear-of .nal guide 4; ofr-a dovetail-character, though. 1

, notnecessarily; for any form of guide'maybe,

used. Mountedain-fthe guide is a slide 5 which. is also of? a dovetail and operate in the guide;

'contourto'enter 7 0" i sThe bottom Iofthe guide is provided with auplurality of'depressions Q6 of spherical; shape to receive the endof a holdingsc-rew 7, so as to hold the slide in 'difl'erentlposi tions. Tl 1ere is a plurality of'these depresandthey are arranged tocorrespvond with a plurality} of transverse' c uts or indicators 8 formedfluponoppositeportionsof the top of v the genome to i i a iath rosiaan the, slide assuines; r.

TlI Bf fOIWELITCl portion ofthe slide hasan upstanding; arm' 9, which may be elther straight, or it maybe partly curved, andv straight it has a pivotal connection at 10 to v the seat- :back, and ificuryed it mayrhaveza slotlll; to receive. a thumb. :screwI 12 which IIltl-YllbfinllQlCl, in different; positions to more comfortably accommodate the-posture oftthe body of rthegrdriver.

*vThis thumb screwretarns" v to .Qutstand, any Lpull v'vhich :maybe exerted on tlie seat back when thendrivermay; be

Referring to Figures 1,2 and 3 it is to noted that the upstanding arm 9 connected by two screws 9 to the seat back, there mor being a wear plate 1O between the arm 9 and the seat back. It is to be noted that the face of the arm 9 where it engages with the Wear plate'is very slightly angled so as to permit of any variations of the parts in changing the position of the seat back.

In Figure 6' the upstanding arm 9 is connected to the seat back in the manner pre Yiously set forth.

"The invention having been set forth, What is claimed is z 1. In a seat back support and adjuster, the combination with a base to'be secured to the ledge of an automobile seat back, said base having a guide, a slide operatively mounted in the guide, means for retaining the slide in differentpositions, said slide at its for- Ward end having an upstandlng arm provided With a loose operative abutting conalectlOIlxWltll the seat back to hold it in dif- V ferent positions, said loose operative abutting connection including a slot in the upstanding arm; and means passing through the slot and penetrating theseat back for insuring said connections. 7 p

a 2. In an automobile seat back support and adjuster thecombination with a base to be fastened on the ledge to, the rear of the seat back, of a-jslide joperatively guided upon the baseiwith means for holding it in difierent adjusted'positions, the forward end of the slide having an upstanding arm and being curved to accommodate itself to the seat back, said-arm having a slot, and a thumb screw passing through the slot and penetrating 'the seat back for the purpose of loosening or tightening the connections with the seat back. 1 V

3. In a seatback and adjuster, the combination with a base to be secured to the ledge of an automobile seat back, said base having aguide comprising a channel and adjoining overhanging flanges, of a slide mounted in the guide and having opposite "longitudinal edges fitting between said overhanging side flanges, the bottom of the guide having depressions, means adjustably penetrating through the slide and adapted to engage any one of said depressions to hold the slide in different positions, said slide at its forward end having an upstanding arm pro- ,vided'with looseroperative abutting connections with the seat back, permitting slight variation in angular relation of the back withregard to the arm, said upstanding arm where it has loose abutting connections with the seatback being shaped to permit of a rocking: engagement between the seat back and the arm. 7 v In witness whereof, the inventors signature is hereunto afiixed.

MALCOLM ALEXANDER CAMPBELL. 

